pete williams in our washington bureau. pete, it probably bears repeating at this point while people may be seeing other aspects of security at their local airport train station, no reason to think this is anything beyond the boylston street bombings that we saw in boston. >> reporter: that's right. according to the officials i have talked to tonight, brian. of course they are still trying to figure out precisely what it was that happened in boston. we know that there were two bombs, but they are still saying there might have been others planted along the route of the marathon. packages found on the street were deemed suspicious and were being destroyed tonight. we still have not heard any firm confirmation of whether at least the five other packages actually were explosive devices, although some officials say there is reason to think they were. there is no suspect in custody. but people are very interested in questioning a young person with a student visa who has burns and was seen by witnesses running from the area. but n